Problem: Estimate ΔH for the atomization of benzene, C6H6: C6H6(g) → 6 C(g) + 6 H(g), by using ΔH˚f data (ΔH˚f (C, g) = 718.4 kJ/mol, ΔH˚f (H, g) = 217.94 kJ/mol, ΔH˚f (C6H6, g) = 82.9 kJ/mol) and Hess's law.

FREE Expert Solution

The balanced reaction:

C6H6(g) → 6 C(g) + 6 H(g)


Recall that ΔH˚rxn can be calculated:

H°rxn=H°f, products-H°f, reactants

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Problem Details

Estimate ΔH for the atomization of benzene, C6H6: C6H6(g) → 6 C(g) + 6 H(g), by using ΔH˚f data (ΔH˚f (C, g) = 718.4 kJ/mol, ΔH˚f (H, g) = 217.94 kJ/mol, ΔH˚f (C6H6, g) = 82.9 kJ/mol) and Hess's law.

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